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C# to Java Converter
C# to Java Converter produces great Java code, saving you hours of painstaking work and valuable time.
Try the Free Edition
- Free
- High-quality conversion
- Limited conversion output
Purchase the Premium Edition
- $149 US per year (15-day guarantee)
- High-quality conversion
- Unlimited conversion output
Runs on 64-bit Windows with version 4.8 of the .NET Framework.
The Free Edition limits output to 100 lines per file (no limit on the number of files).
License Information Support Uninstall Instructions
10 Second Overview
Converting Folders:
C# to Java Collections Conversion:
C# to Java Lambda Conversion:
C# to Java Inheritance Conversion:
C# to Java Generics Conversion:
C# to Java Indexer Conversion:
Numerous Options:
*Scroll right to see C# to Java Converter screenshots
Key Benefits
- Saves valuable time
- Accurate and comprehensive
- Easy to use
- Safe - your code never leaves your machine
- Responsive customer support
- 15 day money-back guarantee
- Flexible - converts snippets, files, projects, solutions, and folders from C# to Java
- Fast - tens of thousands of lines converted from C# to Java per minute
- Helpful conversion comments
- Excellent educational tool for C# developers learning Java
- Numerous conversion and formatting options
FAQ
Q: Are the original C# files altered in any way?
Your existing code is left completely intact. The new Java files are output to the new location that you specify.
Q: What is the conversion accuracy?
Our accuracy is very high, but there will be significant adjustments required for all but the simplest conversions. There are no direct equivalents for some aspects of C#. Read the rest of the FAQ to get an idea of a few things that are not converted. C# to Java Converter is intended to reduce the amount of work you'll have to do to convert code to Java, but it is just the first step.
Q: Are C# delegates converted?
Yes - try out our Free Edition to see the conversion details. We convert delegate declarations to interface declarations and references to delegate instances to lambdas.
Q: Are C# events converted?
Yes - try out our Free Edition to see the conversion details. We substitute a wrapper type (using Java generics) for the event delegate type. This generic type maintains collections of 'listeners' with methods to add or remove listeners.
Q: Are C# ref parameters converted?
Yes - try out our Free Edition to see the conversion details. We substitute a wrapper type (using Java generics) for the parameter type and adjust all references to the parameter in the defining method and all calls to the method.
Q: How are C# methods with optional parameters converted?
Overloaded methods are created. Missing arguments are replaced by the defaults specified by the original C# parameter list.
Q: What about .NET UI code?
The converter does not convert .NET UI types due to the lack of similarity between these types and Java UI types.
Q: What are the most common adjustments necessary after conversion?
- 'unsafe' code blocks and types are not converted.
- C# to Java Converter converts only some .NET types to Java equivalents. The converter offers options to use your own custom replacements.
- C# events of delegate types that are not defined in the converted code and also not one of the System.Action or System.Func delegates are not converted.
- Since Java lacks a preprocessor, all code dependent on conditional compilation needs to be refactored so that the functionality can be achieved in other ways.
- C# LINQ query syntax is not converted since this feature is not available in Java (but LINQ method syntax is partially converted).
- C# 'struct' is converted to Java 'class', since Java does not include value types. We add a 'clone' method to the Java class to try to reproduce the same behavior as .NET value types, but adjustments may still be required.
- C# nullable logic cannot be converted since the necessary null-value logic must be applied to every aspect of expressions containing the nullable variable or method call. The only aspect of nullable instances that is converted is the declared type - the corresponding Java wrapper type is used for nullable primitives (e.g., the Java wrapper type 'Integer' is used for C# int? or Nullable<int>).
- Unfortunately, many new C# features beginning with C# 7 have no equivalent in other languages. The C# language is now evolving quickly into an experimental language based on GitHub requests rather than coherent design principles.
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